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Go (Golang) naming conventions — covers packages, constructors, structs, interfaces, constants, enums, errors, booleans, receivers, getters/setters, functional options, acronyms, test functions, and subtest names.
Passed 22 of 22 test cases with the skill, and 17 of 22 without it.
and 3 more in the full report
5 fixed17 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
I am declaring a sentinel error in a Go package named `userdb`: `var ErrNotFound = errors.New("USER NOT FOUND")`. How should this error string be formatted according to Go standard library conventions?
| Checked | Without skill | With skill |
|---|---|---|
| The response recommends formatting the error message string entirely in lowercase. | Passed | Passed |
| The response recommends prefixing the error message string with the package name userdb:. | Missed | Passed |
The instructions your model reads when the skill loads.
Community default. A company skill that explicitly supersedes
samber/cc-skills-golang@golang-namingskill takes precedence.
Go favors short, readable names. Capitalization controls visibility — uppercase is exported, lowercase is unexported. All identifiers MUST use MixedCaps, NEVER underscores.
"Clear is better than clever." — Go Proverbs
"Design the architecture, name the components, document the details." — Go Proverbs
To ignore a rule, just add a comment to the code.
| Element | Convention | Example |
|---|---|---|
| Package | lowercase, single word, _test suffix OK for test files | json, http, tabwriter, http_test |
| File | lowercase, underscores OK | user_handler.go |
| Exported name | UpperCamelCase | ReadAll, HTTPClient |
| Unexported | lowerCamelCase | parseToken, userCount |
| Interface | method name + -er | Reader, Closer, Stringer |
| Struct | MixedCaps noun | Request, FileHeader |
| Constant | MixedCaps (not ALL_CAPS) | MaxRetries, defaultTimeout |
| Receiver | 1-2 letter abbreviation | func (s *Server), func (b *Buffer) |
| Error variable | Err prefix | ErrNotFound, ErrTimeout |
| Error type | Error suffix | PathError, SyntaxError |
| Constructor | New (single type) or NewTypeName (multi-type) | ring.New, http.NewRequest |
| Boolean field | is, has, can prefix on fields and methods | isReady, IsConnected() |
| Test function | Test + function name | TestParseToken |
| Acronym | all caps or all lower | URL, HTTPServer, xmlParser |
| Variant: context | WithContext suffix | FetchWithContext, QueryContext |
| Variant: in-place | In suffix | SortIn(), ReverseIn() |
| Variant: error | Must prefix | MustParse(), MustLoadConfig() |
| Option func | With + field name | WithPort(), WithLogger() |
| Enum (iota) | type name prefix, zero-value = unknown | StatusUnknown at 0, StatusReady |
| Named return | descriptive, for docs only | (n int, err error) |
| Error string | lowercase (incl. acronyms), no punctuation | "image: unknown format", "invalid id" |
| Import alias | short, only on collision | mrand "math/rand", pb "app/proto" |
| Format func | f suffix | Errorf, Wrapf, Logf |
| Test table fields | got/expected prefixes | input string, expected int |
test cases passed, vs 17 / 22 without
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